Garuda - Garba Rujukan Digital

Pelatihan Online Content Marketing dan Desain Bagi Pemula Dengan Menggunakan Aplikasi Canva Adi Darmawan; Laksamana, Patria; Saripudin; Suharyanto
Jurnal Abdimas Perbanas Vol. 3 No. 1 (2022): Jurnal Abdimas Perbanas
Publisher : Institut Keuangan-Perbankan Dan Informatika Asia Perbanas

Graphic design and marketing content are two important things in both conventional and digital marketing activities. A good quality of design and content is needed, not only from the aspect of content, design and visual appearance, but also to several other aspects, namely concepts, trends, market segments, costs, and including the applications used. The Canva Graphic Design application is one of the option that can be used for beginners because it has a number of advantages and is easy to operate. In addition, it is also necessary to properly understand the communication aspect so that the content and designs created can be easily accepted and recognized by the public, as well as the legal aspects in order to avoid potential legal problems that may arise as a result of violating the provisions of the Act within the scope of Intellectual Property Rights (IPR). This training is expected to improve the skills and abilities of the participants, especially beginners, to be more creative and innovative in producing good quality content marketing and designs in a relatively easy, fast and inexpensive way. In addition, in general, it is also expected to increase the creative economy business in Indonesia. Keywords: Content Marketing, Design Grafis, Branding

Pembuatan Nanosilika dari Abu Sekam Padi pada Variasi pH Sol Gel Evan, Evan; Pardoyo, Pardoyo; Darmawan, Adi
Greensphere: Journal of Environmental Chemistry Vol 2, No 1 (2022): Volume 2 Issue 1 Tahun 2022
Publisher : Universitas Diponegoro

Telah dilakukan penelitian tentang pengaruh variasi pH sol gel terhadap karakter nanosilika yang disintesis dari abu sekam padi. Tujuan penelitian untuk memperoleh silika berukuran nano dari abu sekam padi, menentukan pengaruh variasi pH sol gel terhadap nanosilika yang dihasilkan serta pH optimum dalam pembentukan nanosilika. Metode yang dilakukan meliputi ekstraksi silika dan sintesis nanosilika dengan variasi pH sol gel pada pH 9, pH 7, dan pH 5. Produk sintesis dikarakterisasi menggunakan XRD, FTIR, dan SEM-EDX. Hasil menunjukkan nanosilika yang diperoleh berbentuk amorf dengan ukuran morfologi permukaan 40 nm sampai 100 nm pada pH 5 dan pH 9, serta 40 nm sampai 85 nm pada pH 7. Gugus Si-O-Si dan Si-OH ditemukan pada beberapa bilangan gelombang spesifik. Rasio gugus Si-OH/Si-O-Si untuk pH 5, pH 7, dan pH 9 masing-masing sebesar 4,18, 5,36, dan 3,96. pH optimum dalam pembentukan nanosilika didapatkan pada pH 7, jumlah produk terbanyak diperoleh pada pH 5 sedangkan kandungan Si terbanyak pada pH 9.

Uji Aktivitas Fotokatalis Genteng Berglasir Silika/TiO2 terhadap Degradasi Larutan Indigo Carmine, Metanil Yellow dan Rhodamin Maranti Sianita; Adi Darmawan; Choiril Azmiyawati
Jurnal Kimia Sains dan Aplikasi Vol 20, No 2 (2017): Volume 20 Issue 2 Year 2017
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Pencampuran silika dan TiO2 dan penggunaan sebagai katalis telah diteliti. Tujuan dari penelitian ini adalah pengujian aktivitas fotokatalitik dari atap glasir silika/TiO2 untuk mendegradasi zat warna, seperti indigo carmine, rhodamin dan methyl yellow. Glasir dibuat dengan mencampur abu soda, boraks, serbuk kaca yang dikenal sebagai sumber silika dan TiO2 yang difungsikan sebagai fotokatalis. Pembakaran dilakukan dua kali pada 900°C. Aktivitas fotokatalis dari glasir yang dihasilkan dilakukan dengan uji kinerja degradasi menggunakan tiga pewarna berbeda. Pewarna dialirkan pada permukaan glasir silika / TiO2 selama 1, 2, 3, dan 4 jam. Perubahan konsentrasi zat warna diukur dengan spektrofotometer UV-VIS. Hasil penelitian menunjukkan produksi glasir genteng dapat dilakukan dengan menambahkan campuran TiO2 pada glasir. Hasil fotokatalitik menunjukkan degradasi indigo carmine adalah 74,58%, methanyl yellow 16,08% dan rhodamin 47,56%.

PEMBUATAN TEH HERBAL DARI DAUN KELOR (Moringa oleifera) UNTUK MENINGKATKAN KESEHATAN TUBUH Hakim, Muhamad Shaufil; Sari, Ainayya Amalia; Al Aqad, Yuniar Rizki Rahmawati; Amara, Nadya; Putri, Aida Musyarrifah Hasri; Putra, Muhammad Septian Dwi; Sani, Nabila Aulia; Khaerunnisa, Khaerunnisa; Darmawan, Adi; Susanto, Oki Novian; Rosmaliati, Rosmaliati
Jurnal Wicara Vol 1 No 5 (2023): Jurnal Wicara Desa
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/wicara.v1i4.3396

Moringa is a type of plant that belongs to the Moringaceae family. This plant is also known as (Moringa oleifera). Moringa has many uses and has long been used by various cultures because various parts of this plant have high nutritional value and health properties that are considered beneficial. Some parts of the Moringa plant that are commonly used are the leaves, fruit, flowers, seeds, and roots. Moringa (Moringa Oleifera) originates from India and Arabia and then spreads to various regions. years, and withstand extreme heat conditions. This plant comes from tropical and subtropical regions of South Asia. In Indonesia, Moringa trees are widely planted as living fences, planted along fields or on the edges of rice fields, functioning as green plants. In addition, the Moringa plant is also known as a nutritious medicinal plant by utilizing all parts of the Moringa plant, starting from the leaves, bark, seeds, to the roots. This plant has been studied for its health benefits, has antifungal, antioxidant, antibacterial, anti-inflammatory, diuretic, and as a hepatoprotector. According to Folid, Moringa leaves can be consumed as a vegetable, consumed in the form of Moringa leaf tea, flour, powder or Moringa leaf capsules. Moringa leaf tea is a caffeine-free herbal tea which is very good for health and has a pretty good taste. Moringa leaf tea contains many nutrients that can increase the body's metabolism. Tea is a drink prepared by soaking the leaves or certain parts of the tea plant (Camellia sinensis) in hot water. This tea plant is the main source for various types of tea known throughout the world. There are several main types of tea that are produced from the Camellia sinensis tea plant, and these differences are mainly derived from the processing of the tea leaves.

PEMBUATAN TEH HERBAL DARI DAUN KELOR (Moringa oleifera) UNTUK MENINGKATKAN KESEHATAN TUBUH Hakim, Muhamad Shaufil; Sari, Ainayya Amalia; Al Aqad, Yuniar Rizki Rahmawati; Amara, Nadya; Putri, Aida Musyarrifah Hasri; Putra, Muhammad Septian Dwi; Sani, Nabila Aulia; Khaerunnisa, Khaerunnisa; Darmawan, Adi; Susanto, Oki Novian; Rosmaliati, Rosmaliati
Jurnal Wicara Vol 1 No 5 (2023): Jurnal Wicara Desa
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/wicara.v1i4.3396

Moringa is a type of plant that belongs to the Moringaceae family. This plant is also known as (Moringa oleifera). Moringa has many uses and has long been used by various cultures because various parts of this plant have high nutritional value and health properties that are considered beneficial. Some parts of the Moringa plant that are commonly used are the leaves, fruit, flowers, seeds, and roots. Moringa (Moringa Oleifera) originates from India and Arabia and then spreads to various regions. years, and withstand extreme heat conditions. This plant comes from tropical and subtropical regions of South Asia. In Indonesia, Moringa trees are widely planted as living fences, planted along fields or on the edges of rice fields, functioning as green plants. In addition, the Moringa plant is also known as a nutritious medicinal plant by utilizing all parts of the Moringa plant, starting from the leaves, bark, seeds, to the roots. This plant has been studied for its health benefits, has antifungal, antioxidant, antibacterial, anti-inflammatory, diuretic, and as a hepatoprotector. According to Folid, Moringa leaves can be consumed as a vegetable, consumed in the form of Moringa leaf tea, flour, powder or Moringa leaf capsules. Moringa leaf tea is a caffeine-free herbal tea which is very good for health and has a pretty good taste. Moringa leaf tea contains many nutrients that can increase the body's metabolism. Tea is a drink prepared by soaking the leaves or certain parts of the tea plant (Camellia sinensis) in hot water. This tea plant is the main source for various types of tea known throughout the world. There are several main types of tea that are produced from the Camellia sinensis tea plant, and these differences are mainly derived from the processing of the tea leaves.

Organo-Silica Membrane Prepared from TEOS-TEVS Modified with Organic-Acid Catalyst for Brackish Water Desalination Elma, Muthia; Lestari, Aptar Eka; Sumardi, Anna; Assyaifi, Zaini Lambri; Darmawan, Adi; Mujiyanti, Dwi Rasy; Syauqiah, Isna; Rahma, Aulia; Suciwati, Linda; Mawaddah, Yanti
Jurnal Rekayasa Kimia & Lingkungan Vol 16, No 1 (2021): Jurnal Rekayasa Kimia & Lingkungan (June, 2021)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v16i2.18107

The sol gel process is one of the processes used in the manufacture of thin films on membranes because it can control the pore size in the resulting silica matrix. In addition, another way to build membrane size can be done by adding catalysts and precursors to be used. In this study, using a combination of tetraethyl ortho silicate (TEOS) and triethoxy vinyl silane (TEVS) precursors and citric acid as a catalyst to produce a silica matrix with mesoporous size so that it is suitable for application in the desalination process. The organo silica membrane was calcined at 350 C for 1 hour using the RTP calcination technique under vacuum, thus preventing the decomposition of carbon in the silica matrix. The membrane was dipcoated 4 times to obtain 4 layers. The FTIR (Fourier-transform Infrared Spectroscopy) test was carried out to see the functional groups on xerogel, namely silanol, siloxane and carbon. In addition, the performance of this membrane is carried out by desalination through pervaporation using 0.3% NaCl feed water with variations in feed air temperature, namely 25, 40and 60. The resulting flux of air value increased with increasing feed water temperature, namely 6.1; 11.2; and 12.1kg.m-2h-1while the resulting salt rejection was 99.72; 99.64 and 99.23%. So that the organo silica membrane is suitable when applied to the desalination process through pervaporation.

Analysis of Occupational Accident Risk Control Efforts at PT. XYZ Using the Job Safety Analysis (JSA) and Hazard Identification Risk Assessment (HIRA) Methods: Analisis Risiko Kecelakaan Kerja Pada PT. XYZ Menggunakan Metode Job Safety Analysis (JSA) Dan Hazard Identification Risk Assessment (HIRA) Rezi Berliana Yasinta; Ahmad, Farhan; Adi Darmawan; Zaki Al Fattah Putra Firmansyah
PUBLIKASI RISET ORIENTASI TEKNIK SIPIL (PROTEKSI) Vol 7 No 2 (2025): Vol.7 No 2 (2025)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

This study aims to analyze the risk of occupational accidents occurring in the production section of PT. XYZ, an automotive manufacturing company. The risk analysis was conducted using the Job Safety Analysis (JSA) and Hazard Identification Risk Assessment (HIRA) methods. The primary data, which consists of occupational accident records from PT. XYZ, is secondary data indicating that in 2023, a total of 61 workplace accidents occurred. Additional data required to validate this research were obtained through literature review. The results of this study include a risk ranking that contains the risk values of occupational accidents obtained through the HIRA method and information on control efforts obtained through the JSA method. The conclusion drawn from the analysis shows that four types of workplace accidents are classified as low-risk, two types as medium-risk, and the control efforts for most types of accidents involve increasing worker awareness and supervision regarding the use of personal protective equipment (PPE) in accordance with standard operating procedures (SOPs), as part of fulfilling occupational health and safety (OHS) aspects in the company.

The Characterization of Oyster Shell (Crassostrea gigas) as Adsorbent in The Removal of Cr(VI) Ions. A Study of NaOH and H2SO4 Activation Effect Lia Handayani; Cut Rahmawati; Nurhayati Nurhayati; Yayuk Astuti; Adi Darmawan
Elkawnie Vol. 6 No. 1 (2020)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v6i1.5543

Abstract : Oyster shell as one of the highest bio-waste in Alue Naga Aceh Besar District, Indonesia, was used as an adsorbent to remove a heavy metal Cr (VI) ion. The study was started by calcinating oyster shells at a high temperature of 800 ºC for 3 hours. The effect of various acid (H2SO4) and base (NaOH) activator was studied using characterization and adsorption experiments. The characterization obtained the sample activated by 10% NaOH (Na10-ACT) and 10% H2SO4 (H10-ACT) had the highest surface area which had 14.23 m2/g, 10.77 m2/g, respectively. Furthermore, the adsorption experiments confirmed the highest surface area by showing the highest Cr (IV) ion removal of 57.66%, 70.7%, respectively. The further investigation using X-ray fluorescence (XRF) determined that the Na10-ACT adsorbent has a better composition compared to the H10-ACT due to its high purities.Abstrak : Cangkang tiram sebagai salah satu bio-limbah padat di Desa Alue Naga Kabupaten Aceh Besar, digunakan sebagai adsorben untuk menghilangkan ion logam berat Cr (IV). Penelitian ini diawali dengan mengkalsinasi cangkang tiram pada temperatur tinggi 800ºC selama tiga jam. Pengaruh penambahan aktivator asam (H2SO4) dan basa (NaOH) juga dipelajari melalui karakterisasi dan pengujian adsorpsi. Hasil karakterisasi menunjukkan sampel yang diaktivasi dengan 10% NaOH (Na10-ACT) dan 10% H2SO4 (H10-ACT) memiliki luas permukaan tertinggi yaitu 14,23 m2/g, 10,77 m2/g, masing-masing. Lebih lanjut, pengujian adsorpsi juga mendukung luas permukaan yang tinggi dengan menghilangkan ion Cr (IV) sebesar 57,66%, 70,7%, masing-masing. Investigasi melalui analisa XRF menyimpulkan bahwa Na10-ACT memiliki komposisi yang lebih baik dibanding H10-ACT karena memiliki kemurnian yang tinggi.

Production and Characterization of Adsorbent from Oyster Shell (Crassostrea gigas) Using Physics and Chemical Activation with ZnCl2 and Its Application for Removal of Hexavalent Chromium Lia Handayani; Azwar Thaib; Nurhayati Nurhayati; Yayuk Astuti; Adi Darmawan
Elkawnie Vol. 6 No. 2 (2020)
Publisher : Faculty of Science and Technology Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v6i2.7333

Abstract: Oyster shell waste has been investigated as a raw material for making adsorbents that will be activated. Physical activation uses temperatures of 500 ºC, 600 ºC, 700 ºC, 800 ºC, 900 ºC and chemical activation uses ZnCl2 with a concentration of 1 %, 5 %, 10 % and 15 %. Based on the analysis of the characteristics that have been carried out for physically activated adsorbents, the oyster shell calcined at 800 ºC produces the best characteristics, it is a radius of 35.11 Å with a percentage of removal of 38.04 %, as well as the results of the FTIR, XRF and SEM analysis gives the best results among others. Whereas for chemically activated adsorbents, the use of activator ZnCl2 10% produces adsorbents with the best characteristics among others with a radius of 84.14 Å and removal percentage of 65.68 %, the best results for adsorbents activated using 10% ZnCl2 are also supported by analysis results given by FTIR, XRF, and SEM.Keywords: Adsorbent; BET; Cr6+; Oyster Shell Waste; XRF Abstrak: Cangkang tiram (Crassostrea gigas) telah diteliti sebagai bahan baku pembuatan adsorben yang akan diaktivasi secara fisika dan kimia. Pembuatan adsorben dengan aktivasi secara fisika menggunakan variasi suhu 500 ºC, 600 ºC, 700 ºC, 800 ºC dan 900 ºC. sedangkan aktivasi kimia yaitu menggunakan aktivator ZnCl2 menggunakan variasi konsentrasi 1 %, 5 %, 10% dan 15 %. Berdasarkan analisa karakteristik yang telah dilakukan untuk adsorben-adsorben yang telah diaktivasi secara fisika, cangkang tiram yang di kalsinasi pada suhu 800ºC menghasilkan karakteristik yang paling baik, yaitu radius pori-pori 35,11 Å dengan persentase penyisihan sebesar 38,04 %, begitu pula dengan hasil analisa FTIR, XRF dan SEM memberikan hasil terbaik diantara yang lain. sedangkan untuk adsorben-adsorben yang diaktivasi secara kimia, penggunaan aktivator ZnCl2 10% menghasilkan adsorben dengan karakteristik yang paling baik diantara lainnya dengan radius pori-pori 84,14 Å dan persentase penyisihan sebesar 65,68%, hasil terbaik untuk adsorben yang diaktivasi menggunakan ZnCl2 10 % juga didukung oleh hasil analisa dari FTIR, XRF dan SEM.

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